AU2142777A - Sequential Inputs Timer - Google Patents

Sequential Inputs Timer

Info

Publication number
AU2142777A
AU2142777A AU21427/77A AU2142777A AU2142777A AU 2142777 A AU2142777 A AU 2142777A AU 21427/77 A AU21427/77 A AU 21427/77A AU 2142777 A AU2142777 A AU 2142777A AU 2142777 A AU2142777 A AU 2142777A
Authority
AU
Australia
Prior art keywords
sequential inputs
timer
inputs timer
sequential
inputs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU21427/77A
Other versions
AU507196B2 (en
Inventor
E. J Moorey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Class 345 Trains Ltd
Original Assignee
ABB Signal Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABB Signal Ltd filed Critical ABB Signal Ltd
Publication of AU2142777A publication Critical patent/AU2142777A/en
Application granted granted Critical
Publication of AU507196B2 publication Critical patent/AU507196B2/en
Assigned to ABB SIGNAL LIMITED reassignment ABB SIGNAL LIMITED Request to Amend Deed and Register Assignors: E.B. Signal(UK) Limited
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
AU21427/77A 1976-01-22 1977-01-19 Sequential inputs timer Expired AU507196B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB2436/76 1976-01-22
GB2436/76A GB1572901A (en) 1976-01-22 1976-01-22 Signal monitoring circuit

Publications (2)

Publication Number Publication Date
AU2142777A true AU2142777A (en) 1978-07-27
AU507196B2 AU507196B2 (en) 1980-02-07

Family

ID=9739550

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21427/77A Expired AU507196B2 (en) 1976-01-22 1977-01-19 Sequential inputs timer

Country Status (5)

Country Link
US (1) US4107616A (en)
AU (1) AU507196B2 (en)
DE (1) DE2702551C2 (en)
GB (1) GB1572901A (en)
ZA (1) ZA77325B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144841C2 (en) * 1981-11-11 1984-05-10 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for evaluating track voltages in railway systems
US7254467B2 (en) * 2003-02-13 2007-08-07 General Electric Company Digital train system for automatically detecting trains approaching a crossing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1168458A (en) * 1966-12-16 1969-10-29 English Electric Co Ltd Signal sequence discriminator
US3995223A (en) * 1970-02-19 1976-11-30 The United States Of America As Represented By The Secretary Of The Navy Seismic-acoustic detection device
BE786430A (en) * 1971-07-22 1973-01-18 Westinghouse Electric Corp ELECTRONIC LOCKING CIRCUIT
US3860832A (en) * 1973-07-02 1975-01-14 Bionic Ind Limited Bionic logic device

Also Published As

Publication number Publication date
DE2702551C2 (en) 1982-04-29
US4107616A (en) 1978-08-15
DE2702551A1 (en) 1977-07-28
AU507196B2 (en) 1980-02-07
ZA77325B (en) 1978-01-25
GB1572901A (en) 1980-08-06

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